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The Duomètre à Quantième Lunaire embodies the latest in horological achievements of Jaeger-LeCoultre: it displays time with a jumping seconds hand showing 1/6th of a second increments and additionally providing the date and the age of the moon in a separate sub dial. The true genius of this watch however lies within the Dual-Wing movement concept, which features two independent power supplies: one entirely dedicated to creating a perfect timing foundation – regulated by escapement and balance –, the other solely for the display of time – hour, minute and seconds hands – as well as date and the age of the moon for the Northern as well as the Southern hemisphere. Both are synchronized through the jumping seconds hand mechanism driven by the escapement. With the Duomètre line, Jaeger-LeCoultre breaks new ground in terms of the accuracy of mechanical wristwatches, for it devised a completely new movement structure in order to gain the highest possible precision. Therefore the watchmakers have come up with the so called Dual-Wing concept to bypass a common problem in mechanical watches: any additional complication reduces the power of the winding barrel thus depriving the precisely tuned regulation organ of a steady flow of energy from the winding barrel. The regularity of the winding barrel’s energy to the going train and escapement remains of primary importance in order to measure time with the precision demanded for today’s mechanical wristwatches.

Since 1833, when the inventive Charles Antoine LeCoultre established this venerable watchmaker, it has produced some of the most outstanding and innovative timepieces. It wasn't until 1931, however, that the Jaeger-LeCoultre brand rose to international fame. It was then that the Reverso - an ingenious reversible watch - was unveiled to the public.

The Duomètre à Quantième Lunaire embodies the latest in horological achievements of Jaeger-LeCoultre: it displays time with a jumping seconds hand showing 1/6th of a second increments and additionally providing the date and the age of the moon in a separate sub dial. The true genius of this watch however lies within the Dual-Wing movement concept, which features two independent power supplies: one entirely dedicated to creating a perfect timing foundation – regulated by escapement and balance –, the other solely for the display of time – hour, minute and seconds hands – as well as date and the age of the moon for the Northern as well as the Southern hemisphere. Both are synchronized through the jumping seconds hand mechanism driven by the escapement. With the Duomètre line, Jaeger-LeCoultre breaks new ground in terms of the accuracy of mechanical wristwatches, for it devised a completely new movement structure in order to gain the highest possible precision. Therefore the watchmakers have come up with the so called Dual-Wing concept to bypass a common problem in mechanical watches: any additional complication reduces the power of the winding barrel thus depriving the precisely tuned regulation organ of a steady flow of energy from the winding barrel. The regularity of the winding barrel’s energy to the going train and escapement remains of primary importance in order to measure time with the precision demanded for today’s mechanical wristwatches.

About Jaeger-LeCoultre

Since 1833, when the inventive Charles Antoine LeCoultre established this venerable watchmaker, it has produced some of the most outstanding and innovative timepieces. It wasn't until 1931, however, that the Jaeger-LeCoultre brand rose to international fame. It was then that the Reverso - an ingenious reversible watch - was unveiled to the public.

This watch is the Jaeger-LeCoultre Duometre a Quantieme Lunaire 40.5mm Q6042521.

100% Authentic

This watch is guaranteed 100% authentic, has original serial numbers and is shipped in factory-fresh,
brand new, unworn condition with all manufacturer documentation and packaging.

Package contains watch manufacturer's certificate of authenticity (if such certificate is applicable,
and provided by the manufacturer), tags, stickers, boxes, and user manuals.

30 Day Returns

We will gladly accept returns within 30 days of receipt of delivery. Watches must be returned to us in
brand new, unworn and undamaged condition. All domestic purchases showing as "In Stock" under $3000 will
receive a full refund minus shipping fees. A 10% restocking fee will apply on all other orders.
Read more.

Free Shipping

Gemnation ships your domestic order free via FedEx/UPS Insured Standard Delivery (3-5 days) after your order has been processed.
Please read the additional information section next to the watch to determine processing times.
Watches that cost less than $200, will be shipped via FedEx/UPS Ground.
Read more.

Two Year Warranty

We sell luxury timepieces at considerably lower prices than the manufacturers list price. Gemnation is not
an Authorized Jaeger-LeCoultre Watch Dealer and is not affiliated with Jaeger-LeCoultre. Authorized dealers are not permitted
to discount or sell watches on the Internet. For this reason, we choose not to be authorized watch dealers
for many of the brands that we sell.

Since we are not authorized dealers for many of the watch manufacturers, we may be unable to ship the original
watch manufacturers warranty. In all cases, however, we provide a Two Year Gemnation Warranty (active from the
date of purchase).

Gemnation utilizes a full-time Swiss-trained watchmaker who is licensed and trained to repair every brand and
model of watch that we sell. If we can supply the original warranty we provide this information in the individual
watch description. Read More.

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100% Authentic

30 Day Returns

Free Shipping

Two Year Warranty

This watch is guaranteed 100% authentic, has original serial numbers and is shipped in factory-fresh,
brand new, unworn condition with all manufacturer documentation and packaging.

Package contains watch manufacturer's certificate of authenticity (if such certificate is applicable,
and provided by the manufacturer), tags, stickers, boxes, and user manuals.

We will gladly accept returns within 30 days of receipt of delivery. Watches must be returned to us in
brand new, unworn and undamaged condition. All domestic purchases showing as "In Stock" under $3000 will
receive a full refund minus shipping fees. A 10% restocking fee will apply on all other orders.
Read more.

Gemnation ships your domestic order free via FedEx/UPS Insured Standard Delivery (3-5 days) after your order has been processed.
Please read the additional information section next to the watch to determine processing times.
Watches that cost less than $200, will be shipped via FedEx/UPS Ground.
Read more.

We sell luxury timepieces at considerably lower prices than the manufacturers list price. Gemnation is not
an Authorized Jaeger-LeCoultre Watch Dealer and is not affiliated with Jaeger-LeCoultre. Authorized dealers are not permitted
to discount or sell watches on the Internet. For this reason, we choose not to be authorized watch dealers
for many of the brands that we sell.

Since we are not authorized dealers for many of the watch manufacturers, we may be unable to ship the original
watch manufacturers warranty. In all cases, however, we provide a Two Year Gemnation Warranty (active from the
date of purchase).

Gemnation utilizes a full-time Swiss-trained watchmaker who is licensed and trained to repair every brand and
model of watch that we sell. If we can supply the original warranty we provide this information in the individual
watch description. Read More.